Home / 17,177.80-25,766.70-8,429.80

Finding the Fourth Proportional to 17,177.80, 25,766.70 and 8,429.80

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Solution

The fourth proportional to 17,177.80, 25,766.70 and 8,429.80 is: 12,644.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,177.80 : 25,766.70 = 8,429.80 : x
  2. Step 2: Convert to fraction form
    17,177.80/25,766.70 = 8,429.80/x
  3. Step 3: Cross multiply
    17,177.80x = 25,766.70 × 8,429.80
  4. Step 4: Simplify right side
    17,177.80x = 217,208,127.66
  5. Step 5: Solve for x
    x = 217,208,127.66/17,177.80
  6. Step 6: Final answer
    x = 12,644.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.